The Community for Technology Leaders
2006 International Conference on Cyberworlds (2006)
Lausanne, Switzerland
Nov. 28, 2006 to Nov. 29, 2006
ISBN: 0-7695-2671-3
pp: 123-132
Duong N.b. Ta , Nanyang Technological University, Singapore
Suiping Zhou , Nanyang Technological University, Singapore
Distributed virtual environments (DVEs) allow many simultaneous human users to interact with each other in shared, 3D virtual worlds. The interactivity of a DVE is of crucial importance, as its success greatly depends on users' perceptions when interacting within the virtual world. In this paper, different from traditional application-centric approaches like dead reckoning, we propose a network-centric approach to enhance the interactivity of DVEs by directly reducing the network latencies in client-server communications. We consider a key problem with this approach, termed the server placement problem. Generally, this problem concerns how to place servers in the network to reduce client-server communication latencies. We then suggest several degree-based server placement approaches. Extensive simulation studies using realistic models have shown that appropriate server placement is very effective in enhancing the interactivity of large-scale DVEs
client-server systems, network servers, virtual reality

D. N. Ta and S. Zhou, "Server Placement for Enhancing the Interactivity of Large-Scale Distributed Virtual Environments," 2006 International Conference on Cyberworlds(CW), Lausanne, Switzerland, 2007, pp. 123-132.
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